A literal English translation of the German adjective weltgeschichtlich is meaningless and clumsy: “world historical”. A better paraphrase is “world changing” In this sense, Operation Barbarossa, the 1941 German invasion of the Soviet Union, was a weltgeschichtlich event because the world changed because of it. No wonder so many wargames have been produced around this pivotal conflict. Yet, despite its importance, Matrix/Slitherine Games and VR Designs have made it the third entry into the Decisive Campaigns series. The developers have given the conflict a unique point of view distinguishing it from the usual hex-based war game paradigm.